We present a detailed study of self-phase modulation in nematic liquid crystals, performing a quantitative comparison with the theory of diffraction. A quite satisfactory fit is obtained at low optical power by taking into account only orientational effects, as it is found that experimental observations are affected by laser-induced heating of the sample at higher optical power. Finally, new features in the saturation region are reported
Restricted Access.In normal materials, the nonlinear optical effects arise from nonlinearities in th...
Restricted Access.We investigate theoretically some phase transitions in liquid crystals in the pres...
In normal materials, the nonlinear optical effects arise from nonlinearities in the polarisabilities...
We present a detailed study of self-phase modulation in nematic liquid crystals, performing a quanti...
[[abstract]]Equally pronounced third-and fifth-order nonlinear optical self-phase modulation effects...
Laser-induced beam bending and the far-field asymmetric diffraction ring pattern due to the self-ben...
The potential for nonlinear optical processes in nematic-liquid-crystal cells is great due to the la...
In this paper the detailed study of the self-diffraction phenomena due to reorientational optical no...
Restricted Access.We present a fast and simple method to determine the sign of the nonlinear coeffic...
Fast optical self-focusing has been observed in a homeotropic nematic liquid crystal cell. This nonl...
We report observations of the diffraction pattern resulting when a nematic liquid crystal is illumin...
[[abstract]]Laser-induced beam bending and the far-field asymmetric diffraction ring pattern due to ...
We investigate the propagation of nematicons in various nematic liquid crystals. Following some gene...
We have made the first quantitative experimental study of transient self-focusing in a Kerr liquid b...
[[abstract]]We report the first detailed measurement of multiple (up to twenty) diffraction rings du...
Restricted Access.In normal materials, the nonlinear optical effects arise from nonlinearities in th...
Restricted Access.We investigate theoretically some phase transitions in liquid crystals in the pres...
In normal materials, the nonlinear optical effects arise from nonlinearities in the polarisabilities...
We present a detailed study of self-phase modulation in nematic liquid crystals, performing a quanti...
[[abstract]]Equally pronounced third-and fifth-order nonlinear optical self-phase modulation effects...
Laser-induced beam bending and the far-field asymmetric diffraction ring pattern due to the self-ben...
The potential for nonlinear optical processes in nematic-liquid-crystal cells is great due to the la...
In this paper the detailed study of the self-diffraction phenomena due to reorientational optical no...
Restricted Access.We present a fast and simple method to determine the sign of the nonlinear coeffic...
Fast optical self-focusing has been observed in a homeotropic nematic liquid crystal cell. This nonl...
We report observations of the diffraction pattern resulting when a nematic liquid crystal is illumin...
[[abstract]]Laser-induced beam bending and the far-field asymmetric diffraction ring pattern due to ...
We investigate the propagation of nematicons in various nematic liquid crystals. Following some gene...
We have made the first quantitative experimental study of transient self-focusing in a Kerr liquid b...
[[abstract]]We report the first detailed measurement of multiple (up to twenty) diffraction rings du...
Restricted Access.In normal materials, the nonlinear optical effects arise from nonlinearities in th...
Restricted Access.We investigate theoretically some phase transitions in liquid crystals in the pres...
In normal materials, the nonlinear optical effects arise from nonlinearities in the polarisabilities...